The present study presents a highly efficient, visible light-induced photocatalytic degradation of Bisphenol A (BPA) by a CuO/Fe₂O₃/ZnO composite, synthesized using a sol-gel combustion method. The catalyst was characterized by XRD, SEM, BET, EDX, DRS, TEM, and XPS techniques. The synthesized CuO/Fe₂O₃/ZnO catalyst was found to perform optimally at neutral pH and 0.04 g/L catalyst dosage, while H₂O₂ addition initiated further radical degradation pathways. HCO₃^- and NO₃^- in the water had a negative effect on BPA degradation, but SO₄^2-, Cl^- and PO₄^3- demonstrated a significant increase in reaction kinetics, thus allowing a real-water application. Radical scavenger tests revealed that hydroxyl radicals and holes play the main role in BPA degradation and mineralization. Toxicity tests and probit analysis showed a significant decrease of LC₅₀ on Daphnia Magna neonates. Considering the exceptional characteristics and photocatalytic performance of CuO/Fe₂O₃/ZnO under visible light, its application could be an efficient alternative for the degradation of xenobiotic organic compounds from polluted waters.

本研究提出了一种高效，可见光诱导的通过溶胶-凝胶燃烧法合成的CuO / Fe ₂ O ₃ / ZnO复合材料对双酚A（BPA）的光催化降解。通过XRD，SEM，BET，EDX，DRS，TEM和XPS技术对催化剂进行了表征。发现合成的CuO / Fe ₂ O ₃ / ZnO催化剂在中性pH和0.04 g / L催化剂用量下表现最佳，而H ₂ O _2的添加引发了进一步的自由基降解途径。HCO ₃ ^-和NO ₃ ^-中的水对BPA降解产生负面影响，但SO ₄ ^2-，氯^-PO ₄ ^3-和PO ₄ ^3-表现出显着的反应动力学增强，因此可以用于实际用水。自由基清除剂测试表明，羟基自由基和空穴在BPA降解和矿化中起主要作用。毒性试验和概率分析表明LC的显著减少₅₀对大型蚤新生儿。考虑到CuO / Fe ₂ O ₃ / ZnO在可见光下的优异特性和光催化性能，其应用可能是降解污水中异源有机化合物的有效替代方法。